IDEAS home Printed from https://ideas.repec.org/p/ehl/lserod/125996.html
   My bibliography  Save this paper

The welfare properties of climate targets

Author

Listed:
  • Coppens, Léo
  • Venmans, Frank

Abstract

Two approaches are predominant in climate models: cost–benefit and cost-effectiveness analysis. Cost–benefit analysis maximizes welfare, finding a trade-off between climate damages and emission abatement costs. By contrast, cost-effectiveness analysis minimizes abatement costs, omits damages but adds a climate constraint, such as a radiative forcing constraint, a temperature constraint or a cumulative emissions constraint. We analyse the impacts of these different constraints on optimal carbon prices, emissions and welfare. To do so, we fit a model with abatement costs, capital repurposing costs (stranded assets) and technological change on IPCC and NGFS scenarios. For scenarios reaching 1.5 °C in 2100, a constraint on cumulative emissions has the best welfare properties, followed by a temperature constraint with overshoot. A forcing constraint with overshoot has insufficient early abatement and large net negative emissions later on, leading to a substantial welfare loss of $23 Trillion. As to the paths reaching 2 °C, all cost-effectiveness analysis abate too late, but the welfare impact of this dynamic inefficiency is milder. Again, a forcing constraint with overshoot scores worst. We show that large negative emissions at the end of the century are never optimal and an artefact of constraints with overshoot.

Suggested Citation

  • Coppens, Léo & Venmans, Frank, 2025. "The welfare properties of climate targets," LSE Research Online Documents on Economics 125996, London School of Economics and Political Science, LSE Library.
  • Handle: RePEc:ehl:lserod:125996
    as

    Download full text from publisher

    File URL: http://eprints.lse.ac.uk/125996/
    File Function: Open access version.
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Joeri Rogelj & Daniel Huppmann & Volker Krey & Keywan Riahi & Leon Clarke & Matthew Gidden & Zebedee Nicholls & Malte Meinshausen, 2019. "A new scenario logic for the Paris Agreement long-term temperature goal," Nature, Nature, vol. 573(7774), pages 357-363, September.
    2. Simon Dietz & Frederick van der Ploeg & Armon Rezai & Frank Venmans, 2021. "Are Economists Getting Climate Dynamics Right and Does It Matter?," Journal of the Association of Environmental and Resource Economists, University of Chicago Press, vol. 8(5), pages 895-921.
    3. Martin C. Hänsel & Moritz A. Drupp & Daniel J. A. Johansson & Frikk Nesje & Christian Azar & Mark C. Freeman & Ben Groom & Thomas Sterner, 2020. "Climate economics support for the UN climate targets," Nature Climate Change, Nature, vol. 10(8), pages 781-789, August.
    4. Frederick Van der Ploeg & Armon Rezai, 2016. "Stranded Assets, the Social Cost of Carbon, and Directed Technical Change: Macroeconomic Dynamics of Optimal Climate Policy," CESifo Working Paper Series 5787, CESifo.
    5. Campiglio, Emanuele & Dietz, Simon & Venmans, Frank, 2022. "Optimal climate policy as if the transition matters," LSE Research Online Documents on Economics 117610, London School of Economics and Political Science, LSE Library.
    6. Léo Coppens & Simon Dietz & Frank Venmans, 2024. "Optimal Climate Policy under Exogenous and Endogenous Technical Change: Making Sense of the Different Approaches," CESifo Working Paper Series 11059, CESifo.
    7. Derek Lemoine & Ivan Rudik, 2017. "Steering the Climate System: Using Inertia to Lower the Cost of Policy," American Economic Review, American Economic Association, vol. 107(10), pages 2947-2957, October.
    8. Gollier, Christian, 2018. "The cost-efficiency carbon pricing puzzle," TSE Working Papers 18-952, Toulouse School of Economics (TSE), revised May 2024.
    9. Nicholas Stern & Joseph Stiglitz & Charlotte Taylor, 2022. "The economics of immense risk, urgent action and radical change: towards new approaches to the economics of climate change," Journal of Economic Methodology, Taylor & Francis Journals, vol. 29(3), pages 181-216, July.
    10. Vogt-Schilb, Adrien & Meunier, Guy & Hallegatte, Stéphane, 2018. "When starting with the most expensive option makes sense: Optimal timing, cost and sectoral allocation of abatement investment," Journal of Environmental Economics and Management, Elsevier, vol. 88(C), pages 210-233.
    11. William Nordhaus, 2018. "Projections and Uncertainties about Climate Change in an Era of Minimal Climate Policies," American Economic Journal: Economic Policy, American Economic Association, vol. 10(3), pages 333-360, August.
    12. William Nordhaus, 2019. "Climate Change: The Ultimate Challenge for Economics," American Economic Review, American Economic Association, vol. 109(6), pages 1991-2014, June.
    13. H. Damon Matthews & Nathan P. Gillett & Peter A. Stott & Kirsten Zickfeld, 2009. "The proportionality of global warming to cumulative carbon emissions," Nature, Nature, vol. 459(7248), pages 829-832, June.
    14. Detlef Vuuren & Elmar Kriegler & Brian O’Neill & Kristie Ebi & Keywan Riahi & Timothy Carter & Jae Edmonds & Stephane Hallegatte & Tom Kram & Ritu Mathur & Harald Winkler, 2014. "A new scenario framework for Climate Change Research: scenario matrix architecture," Climatic Change, Springer, vol. 122(3), pages 373-386, February.
    15. Armon Rezai & Frederick Van Der Ploeg, 2017. "Abandoning Fossil Fuel: How Fast and How Much," Manchester School, University of Manchester, vol. 85(S2), pages 16-44, December.
    16. Brian O’Neill & Elmar Kriegler & Keywan Riahi & Kristie Ebi & Stephane Hallegatte & Timothy Carter & Ritu Mathur & Detlef Vuuren, 2014. "A new scenario framework for climate change research: the concept of shared socioeconomic pathways," Climatic Change, Springer, vol. 122(3), pages 387-400, February.
    17. Richard S. J. Tol, 2023. "Costs And Benefits Of The Paris Climate Targets," Climate Change Economics (CCE), World Scientific Publishing Co. Pte. Ltd., vol. 14(04), pages 1-18, November.
    18. Dietz, Simon & Venmans, Frank, 2019. "Cumulative carbon emissions and economic policy: In search of general principles," Journal of Environmental Economics and Management, Elsevier, vol. 96(C), pages 108-129.
    19. John Weyant, 2017. "Some Contributions of Integrated Assessment Models of Global Climate Change," Review of Environmental Economics and Policy, Association of Environmental and Resource Economists, vol. 11(1), pages 115-137.
    20. Nicole Glanemann & Sven N. Willner & Anders Levermann, 2020. "Paris Climate Agreement passes the cost-benefit test," Nature Communications, Nature, vol. 11(1), pages 1-11, December.
    21. Linus Mattauch & H. Damon Matthews & Richard Millar & Armon Rezai & Susan Solomon & Frank Venmans, 2020. "Steering the Climate System: Using Inertia to Lower the Cost of Policy: Comment," American Economic Review, American Economic Association, vol. 110(4), pages 1231-1237, April.
    22. Elmar Kriegler & Jae Edmonds & Stéphane Hallegatte & Kristie Ebi & Tom Kram & Keywan Riahi & Harald Winkler & Detlef Vuuren, 2014. "A new scenario framework for climate change research: the concept of shared climate policy assumptions," Climatic Change, Springer, vol. 122(3), pages 401-414, February.
    23. Lucas, Robert E, Jr, 1978. "Asset Prices in an Exchange Economy," Econometrica, Econometric Society, vol. 46(6), pages 1429-1445, November.
    24. Coppens, Léo & Dietz, Simon & Venmans, Frank, 2024. "Optimal climate policy under exogenous and endogenous technical change: making sense of the different approaches," LSE Research Online Documents on Economics 124548, London School of Economics and Political Science, LSE Library.
    25. Kristie Ebi & Stephane Hallegatte & Tom Kram & Nigel Arnell & Timothy Carter & Jae Edmonds & Elmar Kriegler & Ritu Mathur & Brian O’Neill & Keywan Riahi & Harald Winkler & Detlef Vuuren & Timm Zwickel, 2014. "A new scenario framework for climate change research: background, process, and future directions," Climatic Change, Springer, vol. 122(3), pages 363-372, February.
    26. Joeri Rogelj & Alexander Popp & Katherine V. Calvin & Gunnar Luderer & Johannes Emmerling & David Gernaat & Shinichiro Fujimori & Jessica Strefler & Tomoko Hasegawa & Giacomo Marangoni & Volker Krey &, 2018. "Scenarios towards limiting global mean temperature increase below 1.5 °C," Nature Climate Change, Nature, vol. 8(4), pages 325-332, April.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Coppens, Léo & Venmans, Frank, 2023. "The welfare properties of climate targets," LSE Research Online Documents on Economics 120567, London School of Economics and Political Science, LSE Library.
    2. Campiglio, Emanuele & Dietz, Simon & Venmans, Frank, 2022. "Optimal climate policy as if the transition matters," LSE Research Online Documents on Economics 117609, London School of Economics and Political Science, LSE Library.
    3. Francesco Lamperti & Valentina Bosetti & Andrea Roventini & Massimo Tavoni, 2019. "The public costs of climate-induced financial instability," Nature Climate Change, Nature, vol. 9(11), pages 829-833, November.
    4. Silva Herran, Diego & Tachiiri, Kaoru & Matsumoto, Ken'ichi, 2019. "Global energy system transformations in mitigation scenarios considering climate uncertainties," Applied Energy, Elsevier, vol. 243(C), pages 119-131.
    5. Moritz A. Drupp & Frikk Nesje & Robert C. Schmidt & Robert Christian Schmidt, 2022. "Pricing Carbon," CESifo Working Paper Series 9608, CESifo.
    6. Lamperti, Francesco & Bosetti, Valentina & Roventini, Andrea & Tavoni, Massimo & Treibich, Tania, 2021. "Three green financial policies to address climate risks," Journal of Financial Stability, Elsevier, vol. 54(C).
    7. Rick van der Ploeg, 2020. "Discounting and Climate Policy," CESifo Working Paper Series 8441, CESifo.
    8. Kılkış, Şiir, 2022. "Urban emissions and land use efficiency scenarios towards effective climate mitigation in urban systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 167(C).
    9. Kılkış, Şiir, 2023. "Integrated urban scenarios of emissions, land use efficiency and benchmarking for climate neutrality and sustainability," Energy, Elsevier, vol. 285(C).
    10. Zhao, Jianheng & Daigneault, Adam & Weiskittel, Aaron & Wei, Xinyuan, 2023. "Climate and socioeconomic impacts on Maine's forests under alternative future pathways," Ecological Economics, Elsevier, vol. 214(C).
    11. Phetheet, Jirapat & Hill, Mary C. & Barron, Robert W. & Gray, Benjamin J. & Wu, Hongyu & Amanor-Boadu, Vincent & Heger, Wade & Kisekka, Isaya & Golden, Bill & Rossi, Matthew W., 2021. "Relating agriculture, energy, and water decisions to farm incomes and climate projections using two freeware programs, FEWCalc and DSSAT," Agricultural Systems, Elsevier, vol. 193(C).
    12. Miftakhova, Alena & Judd, Kenneth L. & Lontzek, Thomas S. & Schmedders, Karl, 2020. "Statistical approximation of high-dimensional climate models," Journal of Econometrics, Elsevier, vol. 214(1), pages 67-80.
    13. Koch, Johannes & Leimbach, Marian, 2023. "SSP economic growth projections: Major changes of key drivers in integrated assessment modelling," Ecological Economics, Elsevier, vol. 206(C).
    14. Lena Reimann & Bryan Jones & Nora Bieker & Claudia Wolff & Jeroen C.J.H. Aerts & Athanasios T. Vafeidis, 2023. "Exploring spatial feedbacks between adaptation policies and internal migration patterns due to sea-level rise," Nature Communications, Nature, vol. 14(1), pages 1-14, December.
    15. Wenbo, Xu & Hengzhou, Xu & Xiaoyan, Li & Hua, Qiu & Ziyao, Wang, 2024. "Ecosystem services response to future land use/cover change (LUCC) under multiple scenarios: A case study of the Beijing-Tianjin-Hebei (BTH) region, China," Technological Forecasting and Social Change, Elsevier, vol. 205(C).
    16. Lanzi, Elisa & Dellink, Rob & Chateau, Jean, 2018. "The sectoral and regional economic consequences of outdoor air pollution to 2060," Energy Economics, Elsevier, vol. 71(C), pages 89-113.
    17. McManamay, Ryan A. & DeRolph, Christopher R. & Surendran-Nair, Sujithkumar & Allen-Dumas, Melissa, 2019. "Spatially explicit land-energy-water future scenarios for cities: Guiding infrastructure transitions for urban sustainability," Renewable and Sustainable Energy Reviews, Elsevier, vol. 112(C), pages 880-900.
    18. Richard Taylor & Ruth Butterfield & Tiago Capela Lourenço & Adis Dzebo & Henrik Carlsen & Richard J. T. Klein, 2020. "Surveying perceptions and practices of high-end climate change," Climatic Change, Springer, vol. 161(1), pages 65-87, July.
    19. Roson, Roberto & Damania, Richard, 2016. "Simulating the Macroeconomic Impact of Future Water Scarcity an Assessment of Alternative Scenarios," Conference papers 332687, Purdue University, Center for Global Trade Analysis, Global Trade Analysis Project.
    20. Traeger, Christian, 2021. "ACE - Analytic Climate Economy," CEPR Discussion Papers 15968, C.E.P.R. Discussion Papers.

    More about this item

    Keywords

    climate change mitigation; targets formulation; integrated assessment models; optimal abatement path; cost-benefit; cost-effectiveness; welfare; negative emissions;
    All these keywords.

    JEL classification:

    • Q54 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Climate; Natural Disasters and their Management; Global Warming
    • I30 - Health, Education, and Welfare - - Welfare, Well-Being, and Poverty - - - General

    NEP fields

    This paper has been announced in the following NEP Reports:

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:ehl:lserod:125996. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: LSERO Manager (email available below). General contact details of provider: https://edirc.repec.org/data/lsepsuk.html .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.